sudo xrandr --newmode "1920x1080_60.00"  173.00  1920 2048 2248 2576  1080 1083 1088 1120 -hsync +vsync

Failed to get size of gamma for output default

sudo xrandr -q



    Screen 0: minimum 1280 x 1024, current 1280 x 1024, maximum
    1280 x 1024
   default connected primary 1280x1024+0+0 0mm x 0mm
   1280x1024     77.00*
   1920x1080_60.00 (0x2ca) 173.000MHz -HSync +VSync
        h: width  1920 start 2048 end 2248 total 2576 skew    0 clock  67.16KHz
        v: height 1080 start 1083 end 1088 total 1120           clock  59.96Hz